Can't get stamina to work

// Yearupie.cpp : Defines the exported functions for the DLL application.
//

#include "Stdafx.h"
#include <Windows.h>
#include <Stdio.h>

/* Adressen zijn van 22-2-2010 van addylogger */
#define ADR_PLAYERPOINTER 0x00CEFDB8
#define ADR_SERVERPOINTER 0x00BEF520
#define OFS_STAMINA 0x28

HANDLE Warrock;
DWORD *ingame= (DWORD*)ADR_PLAYERPOINTER;
DWORD *outgame= (DWORD*)ADR_SERVERPOINTER;

/* Makkelijk om te kopieren, minder typwerk */
// DWORD dwPlayerPtr=*(DWORD*)ADR_PLAYERPOINTER;
// DWORD dwServerPtr=*(DWORD*)ADR_SERVERPOINTER;


// ...

/* Stamina */
void stamina ()
{
	DWORD dwPlayerPtr = *(DWORD*)ADR_PLAYERPOINTER;
	if(dwPlayerPtr != 0)
	{
		*(float*)(dwPlayerPtr+OFS_STAMINA) = 100;
	}
}
// ...

void snip()
{
	for(;; ) 
	{
		if(*ingame)
		{
			//fastAll(); //werkt
			//speedUp(); //werkt
			//speedDown(); //werkt
			//scope(); // werkt
			//superJump(); // werkt
			//nfd(); // werkt
			//teleport(); // werkt
			stamina(); // ---------- werkt niet ! ----------
			//noFog(); // werkt
		}
		if(*outgame)
		{
			// spread(); // werkt
			// noBound(); // werkt
			// premium(3); // werkt
		}
		Sleep(200);
	}
}
BOOL WINAPI DllMain(HINSTANCE hModule,DWORD dwReason,LPVOID lpvReserved){
	if(dwReason==DLL_PROCESS_ATTACH){
		CreateThread(0,0,(LPTHREAD_START_ROUTINE)snip,0,0,0);
		MessageBoxA(NULL, "Made by Yearupie\n Email: wh4l@live.nl", "Credits", MB_OK);
	}
	return TRUE;
}